Oscars 2018 Is Almost Here! Remember the Biggest Transformations From Past Nominees and Winners

Whether it's going completely meta for role, or pushing the human body's limits with an extreme physical alteration, there's almost always at least one actor or actress recognized at the Oscars for taking their performances to the next level. (See Gary Oldman's 2018 Best Actor nomination for his portrayal of Winston Churchill in Darkest Hour.)